When jetting off on holiday, we rarely give a second thought to what microbes we might be taking with us. But humans spread trillions of bacteria around the globe, potentially harming ecosystems' balance.

As many people have had to wade through floodwaters, they need to be aware of the risk of infection and disease from contaminated waters.
AP Photo/David J. PhillipAugust 30, 2017

Engineers at Fukushima nuclear power plant have been trying to create a £185m ice wall to isolate contaminated water from mixing with groundwater. However, there has been a steady stream of news articles…

Soft, surface-ripened cheeses, such as Brie and Camembert, are most likely to transmit listeriosis.
Shutterstock/Jiri HeraFebruary 21, 2013

Soft cheeses made by Jindi were recently recalled in Victoria, after they were linked to the deaths of three adults, a miscarriage, and a score of other cases of “listeriosis”. The case is a reminder of…